Apparatus for making crinkled pafer



June 23, 1925. -1,543,432 N.-YM. GOQDLETT APPARATUS FOR MAKING CRINKLED PAPER Original Filed Dec. 19. 1918 v l 5 v 6 O I BY 4 A TTORNEY l ntenied june 23,

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ZUQCHOLfJ-S M. GOODLET I, OF NEW YORK, N. 36".,

APPARATUS FOR MAKING GRINKLEI) PAPER.

firiginai application filed December. 19, 1918, Serial No. 267,430. Divided end this-application filed January 22, 1925. Serial No. 4,059. v

To all whom it may com-em:

Be it known that I, Nicnoniis M. Goon- Ln'rr, a citizen of the United States, residing at the borough of Manhattan of the city or" 6 New York, county and State of New York, have invented new and useful Improvements in Apparatus for Making Grinkled Paper, of "Whichthe following is a specification.

This invention relates to apparatus for 10 making crinkled paper. in the practical art, prior to this invention, it was the practice to rely upon moisture in'ipnrted to the paper to effect its necessary adherence to the min kling drum. According to the present invention, such adherence of the paper is effected by fluid pressure applied to the paper by suitable means located wholly external of the crinkling drum or other corresponding surface. This application is a division of my co-pending application Serial No. 267,430, filed December 19, 1918, for process and mechanism for making crinkled paper.

One form of the invention is shown in the accompanying drawings forming part of this specification.

Fig. l is an end view, partly in section, showing a crinkling apparatus embodying the invention.

Fig. 2 is aview, partly in section, on the line 22 of l-loohing in the direction of the arrows.

Referring; now to the particular structure shown in the drawings, '1 is a rotating crinkling drum which provides a suitable supporting surface upon which the paper 2 to be crinkled. is deposited. The paper may be led from a suitable source, such as a supply roll. 3 is a doctor which provides :li suitable 40 abutment or crinkle forming means coopera-- tive with the drum 1. When the {paper ad-' herent to the drum meets the doctor 5, it is stripped therefrom and crinkled.

Against the ez'lerior of the drum or other supporting surface for the paper there is positioned suitable means, which may be in the form of a chamber or box, for utilizing fluid pressure for holding the paper adherout to such surface.

chamber may be of the exhaust type wherein is maintained a pressure less than atmospheric pressure, or it may be or' the excess pressure type wherein is maintained a pressure in excess of the atmosphere. Inseither case, such chamber is a fluid pressure cham- Such luid pressureher inasmuch as it effects adherence of the paper to its supporting sur ace by in ms f fluid pressure. In the fcrn'ier case mosphcric pressure which holds the paper against its supporting surface. In the latter case it is the excess pressure in the chamber which accomplishes the same result.

The accompanying drawings show e. il. pressure chamber 4 of the execs... pres type. This chamber 4 is closed on all except on its inner face which is made ucare to closely fit'against the drum. The top and bottom. walls of the chamber may be formed of rolls 5 and 6 in contact with. the drum. 7. and 8 are strips of packing to close the space between the outer side of? the chamber and theperiphery of these rolls. The end walls of the chamber along their edges may he provided with similar strips of packing El and 10, the purpose being to mulre a substantially air-tight of the chamber against the drum. The chamber 4 is, positioned in advance of and close to the dpctor, thereby making the paper adherent to the supporting surface immediately in 80 advance of the doctor so that the fluid pressure applied to-the paper acts to limit the stripping, action of the doctor. The chamber may extend over the surface of the drum as far as required. The invention may be applied to a. paper making machine so as to crinkle the paper as it is delivered from such machine, or it may be utilized to convert finished paper into crinkled paper.

It is Well known that uncoated dry paper is not as effectively crinkled as such paper would be when moist. For the urpose of crinkling such paper, it is theretore advis; able to moisten the paper on its;1 way to the doctor. Such result may be effected by the roll 11 turning, in a tank 12 and in contact with a moistening roll 13 applied against the paper 2 after the same has been deposited upon the drum.

Where excess air pressure is maintained in the chamber e, the chamber will be connected with an air pump to supply the requisite pressure. Where steam pressure is to be used in lieu of excess air pressure, the chamber 4 will be connected with a suitable source of steam pressure supply. Such steam may be utilized to moisten the paper. By means of this invention, a much firmer and more reliable adherence of the paper to its supporting surface may be obtained than is possible by water applied to the paper according to the previous practice, and reliable crinkling of the paper through out its entire surface may be effected and without l-eavinp any uncrinkled spots along the margins of the paper which frequently characterize paper crinkled according to, the previous practice. Furthermore, saturation of the paper which, in order to crinkle it, as heretofore practiced, with the necessity of providing means for drying the saturated crinkled paper may be dispensed with. The chamber 4 is so mounted to be movable t0 and from the drum as occasion may require. The chamber and doctor are also movable to and from each other on the periphery of the drum so as to regulate the distance from each other at which they may be required to work. The drum itself may be heated, if desired, and where the paper is crinkled in a moist condition, it may be run through a suitable drying a iparatus after being crinkled.

\Vhat claim is:

1. In an apparatus for making crinkled paper, a supper-tin; surface for the paper, crinkle forming means cooperative with said surface, and means located wholly external of said surface tor-holdine the paper ad herent't-hereto by fluid pressure.

2. In an apparatus for making crinkled paper, a supporting surface for the paper, crinkle forming means cooperating with said surface, and a fluid pressure chamber positioned against the exterior of said surface for holding the paper adherent thereto by fluid pressure.

3. Paper crinkling apparatus comprising a crinkling drum, crinkle forming means cooperative therewith, and means located wholly external of the drum for holding the paper adherent to the drum by fluid pressure as the paper is advanced to the crinkle forming means.

4. Paper crinkling apparatus comprising a crinkling drum, crinkle forming means cooperative therewith, and a fluid pressure chamber positioned against the exterior of the drum for holding the paper adherent to the drum by fluid pressure as the paper is advanced to the crinkle forming means.

In an apparatus for making crinkled paper. a supporting surface for the paper, crinkle forming means cooperative with said surface, and means located wholly external of said surface for holding the paper adherent thereto by fluid pressure immediately in advance of said crinkle forming means to limit the stripping: action thereof.

(3. In an apparatus for makin; crinkled paper, a supporting surface for the paper, crinkle forming means cooperative with said surface. and a fluid pressure chamber positioned against the exterior of said surface for holding the paper adherent thereto by fluid pressure immediately in advance of said crinkle forming means to limit the stripping action thereof.

7. in an apparatus fo making: crinkled paper, a supporting surfacefor-the paper, means for wetting the paper, crinkle formin; means cooperative with said surface,

and means located wholly external of said.

surface for holding the paper adherent thereto by fluid pressure immediately in advance of said crinkle forming means.

8. Paper crinkling apparatus comprising a (i-inkling: drum, means for wetting the paper, crinkle forming means cooperative therewith, and a fiuid pressure chamber positioned against the exterior of the drum immediately in advance of the crinkle tornr ing means for holding the paper adherent to the drum by fluid pressure.

NICHOLAS M. GOODLETT. 

